For many, many years we could not explain why gravity exists and how it works. We could only experience it. We knew of gravity much before we knew of electric

For many, many years we could not explain why gravity exists and how it works. We could only experience it. We knew of gravity much before we knew of electricity. Try explain electricity to somebody in year 1300 and you'd be burned as a witch. And yet we understood electricity much earlier than gravity. How electricity works is much simpler to explain than gravity.